The force can be calculated by multiplying the mass of the gymnast with her acceleration.
Force = 50 kg × 25 m/s2
Force = 1250 N
A force of at least 1250 N can stop the 50-kg gymnast.
I hope I was able to answer your question. Have a good day.
Explanation:
Momentum of the system is a constant when there aren't external forces..
So,When first Balls velocity is went down to zero... its momentum is also zero and beacause momentum should be a constant...now second ball must have a momentum of 20 kg * m/s
The answer is 20. Frequency is "number of times" per unit time.
Density= population/area
area= 12 X 7 = 84 m^2
density= 168/84= 2 mice per m^2
